diff --git a/scripts/setup_dev_env.sh b/scripts/setup_dev_env.sh
index 3e2e2cfd3..4d59bf4c1 100755
--- a/scripts/setup_dev_env.sh
+++ b/scripts/setup_dev_env.sh
@@ -21,4 +21,4 @@ cd build
 cmake ..
 make -j $processors
 
-export PYTHON_PATH=$PYTHON_PATH:"$SCRIPT_DIR/.."
+export PYTHONPATH=$PYTHONPATH:"$SCRIPT_DIR/.."
diff --git a/scripts/start_dev_server.sh b/scripts/start_dev_server.sh
index 1a5dcb119..a0951cc47 100755
--- a/scripts/start_dev_server.sh
+++ b/scripts/start_dev_server.sh
@@ -6,9 +6,19 @@ CURRENT_DIR=`pwd`
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 cd $SCRIPT_DIR/../frontend
+export PYTHONPATH=$PYTHONPATH:"$SCRIPT_DIR/.."
+
 ./node_modules/.bin/webpack --watch --config tool/webpack.dev.config.js --output-path=../visualdl/server/dist &
+# Track webpack pid
+WEBPACKPID=$!
+
+function finish {
+    kill -9 $WEBPACKPID
+}
 
-export PYTHON_PATH=$PYTHON_PATH:"$SCRIPT_DIR/.."
+trap finish EXIT HUP INT QUIT PIPE TERM
 
 cd $CURRENT_DIR
+
+#Run the visualDL with local PATH
 python ${SCRIPT_DIR}/../visualdl/server/visualDL "$@"